<template>
    <section class="chart-container">
        <el-row>
            <el-col :span="12">
                <div id="chartColumn" style="width:100%; height:400px;"></div>
            </el-col>
            <el-col :span="12">
                <div id="chartBar" style="width:100%; height:400px;"></div>
            </el-col>
            <el-col :span="12">
                <div id="chartLine" style="width:100%; height:400px;"></div>
            </el-col>
            <el-col :span="12">
                <div id="chartPie" style="width:100%; height:400px;"></div>
            </el-col>
        </el-row>
    </section>
</template>

<script>
    import echarts from 'echarts'
    import {date} from "mockjs/src/mock/random/date";
    import th from "element-ui/src/locale/lang/th";

    export default {
        data() {
            return {
                pieData:[],
                data:{},
                chartColumn: null,
                chartBar: null,
                chartLine: null,
                chartPie: null
            }
        },

        methods: {
            drawColumnChart() {
              this.$http.get("/article/fingStarsAndNameByArticle").then(res=>{
                if(res.data.success){
                  // console.log(res.data.data)
                  this.data = res.data.data
                  let articleNames = this.data.map(item => item.articleName)
                  let stars = this.data.map(item => item.stars)
                  // console.log(articleNames)
                  // console.log(stars)
                  this.chartColumn = echarts.init(document.getElementById('chartColumn'));
                  this.chartColumn.setOption({
                    title: { text: '统计点赞前六的文章' },
                    tooltip: {},
                    xAxis: {
                      data: articleNames
                    },
                    yAxis: {},
                    series: [{
                      name: '点赞数',
                      type: 'bar',
                      data: stars
                    }]
                  });
                }else {
                  this.$message(res.data.msg);
                }
              }).catch(res=>{
                console.log(res)
              })
            },
            drawBarChart() {
                this.chartBar = echarts.init(document.getElementById('chartBar'));
                this.chartBar.setOption({
                    title: {
                        text: 'Bar Chart',
                        subtext: '数据来自网络'
                    },
                    tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                            type: 'shadow'
                        }
                    },
                    legend: {
                        data: ['2011年', '2012年']
                    },
                    grid: {
                        left: '3%',
                        right: '4%',
                        bottom: '3%',
                        containLabel: true
                    },
                    xAxis: {
                        type: 'value',
                        boundaryGap: [0, 0.01]
                    },
                    yAxis: {
                        type: 'category',
                        data: ['巴西', '印尼', '美国', '印度', '中国', '世界人口(万)']
                    },
                    series: [
                        {
                            name: '2011年',
                            type: 'bar',
                            data: [18203, 23489, 29034, 104970, 131744, 630230]
                        },
                        {
                            name: '2012年',
                            type: 'bar',
                            data: [19325, 23438, 31000, 121594, 134141, 681807]
                        }
                    ]
                });
            },
            drawLineChart() {
                this.chartLine = echarts.init(document.getElementById('chartLine'));
                this.chartLine.setOption({
                    title: {
                        text: 'Line Chart'
                    },
                    tooltip: {
                        trigger: 'axis'
                    },
                    legend: {
                        data: ['邮件营销', '联盟广告', '搜索引擎']
                    },
                    grid: {
                        left: '3%',
                        right: '4%',
                        bottom: '3%',
                        containLabel: true
                    },
                    xAxis: {
                        type: 'category',
                        boundaryGap: false,
                        data: ['周一', '周二', '周三', '周四', '周五', '周六', '周日']
                    },
                    yAxis: {
                        type: 'value'
                    },
                    series: [
                        {
                            name: '邮件营销',
                            type: 'line',
                            stack: '总量',
                            data: [120, 132, 101, 134, 90, 230, 210]
                        },
                        {
                            name: '联盟广告',
                            type: 'line',
                            stack: '总量',
                            data: [220, 182, 191, 234, 290, 330, 310]
                        },
                        {
                            name: '搜索引擎',
                            type: 'line',
                            stack: '总量',
                            data: [820, 932, 901, 934, 1290, 1330, 1320]
                        }
                    ]
                });
            },
            drawPieChart() {
              this.$http.post("/article/getByType").then(res=>{
                if(res.data.success){
                  this.pieData = res.data.data
                  let articleTypeNames = this.pieData.map(item => item.typeName)
                  let counts = this.pieData.map(item => item.count)
                  console.log(articleTypeNames)
                  // 生成用于图表的数据
                  const chartData = articleTypeNames.map((name, index) => ({
                    value: counts[index],
                    name: name
                  }));
                  this.chartPie = echarts.init(document.getElementById('chartPie'));
                  this.chartPie.setOption({
                      title: {
                          text: '统计前五种文章数量最多的文章类型',
                          subtext: '纯属虚构',
                          x: 'center'
                      },
                      tooltip: {
                          trigger: 'item',
                          formatter: "{a} <br/>{b} : {c} ({d}%)"
                      },
                      legend: {
                          orient: 'vertical',
                          left: 'left',
                          data: articleTypeNames
                      },
                      series: [
                          {
                              name: '文章类型',
                              type: 'pie',
                              radius: '55%',
                              center: ['50%', '60%'],
                              data:chartData,
                              itemStyle: {
                                  emphasis: {
                                      shadowBlur: 10,
                                      shadowOffsetX: 0,
                                      shadowColor: 'rgba(0, 0, 0, 0.5)'
                                  }
                              }
                          }
                      ]
                  });
                  }else {
                    this.$message = res.data.msg
                  }
                }).catch(res=>{
                  console.log(res)
                })
              },
              drawCharts() {
                  this.drawColumnChart()
                  this.drawBarChart()
                  this.drawLineChart()
                  this.drawPieChart()
            },
        },

        mounted: function () {
            this.drawCharts()
        },
        updated: function () {
            this.drawCharts()
        }
    }
</script>

<style scoped>
    .chart-container {
        width: 100%;
        float: left;
    }
    /*.chart div {
        height: 400px;
        float: left;
    }*/

    .el-col {
        padding: 30px 20px;
    }
</style>
